diff options
Diffstat (limited to 'drivers/pci/controller/cadence/pcie-cadence.h')
| -rw-r--r-- | drivers/pci/controller/cadence/pcie-cadence.h | 45 |
1 files changed, 37 insertions, 8 deletions
diff --git a/drivers/pci/controller/cadence/pcie-cadence.h b/drivers/pci/controller/cadence/pcie-cadence.h index 1d81c4bf6c6d..e2a853d2c0ab 100644 --- a/drivers/pci/controller/cadence/pcie-cadence.h +++ b/drivers/pci/controller/cadence/pcie-cadence.h @@ -125,11 +125,6 @@ */ #define CDNS_PCIE_EP_FUNC_BASE(fn) (((fn) << 12) & GENMASK(19, 12)) -#define CDNS_PCIE_EP_FUNC_MSI_CAP_OFFSET 0x90 -#define CDNS_PCIE_EP_FUNC_MSIX_CAP_OFFSET 0xb0 -#define CDNS_PCIE_EP_FUNC_DEV_CAP_OFFSET 0xc0 -#define CDNS_PCIE_EP_FUNC_SRIOV_CAP_OFFSET 0x200 - /* * Endpoint PF Registers */ @@ -367,6 +362,37 @@ static inline u32 cdns_pcie_readl(struct cdns_pcie *pcie, u32 reg) return readl(pcie->reg_base + reg); } +static inline u16 cdns_pcie_readw(struct cdns_pcie *pcie, u32 reg) +{ + return readw(pcie->reg_base + reg); +} + +static inline u8 cdns_pcie_readb(struct cdns_pcie *pcie, u32 reg) +{ + return readb(pcie->reg_base + reg); +} + +static inline int cdns_pcie_read_cfg_byte(struct cdns_pcie *pcie, int where, + u8 *val) +{ + *val = cdns_pcie_readb(pcie, where); + return PCIBIOS_SUCCESSFUL; +} + +static inline int cdns_pcie_read_cfg_word(struct cdns_pcie *pcie, int where, + u16 *val) +{ + *val = cdns_pcie_readw(pcie, where); + return PCIBIOS_SUCCESSFUL; +} + +static inline int cdns_pcie_read_cfg_dword(struct cdns_pcie *pcie, int where, + u32 *val) +{ + *val = cdns_pcie_readl(pcie, where); + return PCIBIOS_SUCCESSFUL; +} + static inline u32 cdns_pcie_read_sz(void __iomem *addr, int size) { void __iomem *aligned_addr = PTR_ALIGN_DOWN(addr, 0x4); @@ -468,7 +494,7 @@ static inline u32 cdns_pcie_ep_fn_readl(struct cdns_pcie *pcie, u8 fn, u32 reg) static inline int cdns_pcie_start_link(struct cdns_pcie *pcie) { - if (pcie->ops->start_link) + if (pcie->ops && pcie->ops->start_link) return pcie->ops->start_link(pcie); return 0; @@ -476,13 +502,13 @@ static inline int cdns_pcie_start_link(struct cdns_pcie *pcie) static inline void cdns_pcie_stop_link(struct cdns_pcie *pcie) { - if (pcie->ops->stop_link) + if (pcie->ops && pcie->ops->stop_link) pcie->ops->stop_link(pcie); } static inline bool cdns_pcie_link_up(struct cdns_pcie *pcie) { - if (pcie->ops->link_up) + if (pcie->ops && pcie->ops->link_up) return pcie->ops->link_up(pcie); return true; @@ -536,6 +562,9 @@ static inline void cdns_pcie_ep_disable(struct cdns_pcie_ep *ep) } #endif +u8 cdns_pcie_find_capability(struct cdns_pcie *pcie, u8 cap); +u16 cdns_pcie_find_ext_capability(struct cdns_pcie *pcie, u8 cap); + void cdns_pcie_detect_quiet_min_delay_set(struct cdns_pcie *pcie); void cdns_pcie_set_outbound_region(struct cdns_pcie *pcie, u8 busnr, u8 fn, |